CN106152325B

CN106152325B - Dust filtering ventilator

Info

Publication number: CN106152325B
Application number: CN201510135785.8A
Authority: CN
Inventors: 江勇
Original assignee: Shenzhen Diqiucun Environmental Protection Industry Co ltd
Current assignee: Shenzhen Diqiucun Environmental Protection Industry Co ltd
Priority date: 2015-03-26
Filing date: 2015-03-26
Publication date: 2022-10-28
Anticipated expiration: 2035-03-26
Also published as: CN106152325A

Abstract

The invention relates to the technical field of fresh air devices, in particular to a dust-filtering fresh air device which comprises a box body, wherein the box body is provided with an exhaust cavity and an air inlet cavity, the exhaust cavity is provided with an exhaust fan, the air inlet cavity is provided with an air inlet fan and a filter, the filter consists of a first-stage filter screen, a second-stage filter screen and a third-stage filter screen, the three filter screens are provided with handles, hollow round pipes at two ends of each handle penetrate through holes of the filter screens and then extend into a positioning cavity, and the hollow round pipes are nested with pressure rods; the inner cavity wall of the positioning cavity is provided with four pulleys and two baffles, locking blocks are embedded in blocking through holes of the two baffles, the two sides of the front ends of the two locking blocks are connected through two springs, the tail ends of the two locking blocks are connected through a traction wire, and a wedge matched with the locking blocks is further arranged at the other end of the hollow circular tube. When the filter screen is used, the filter screen can be quickly replaced, and the filtering efficiency and the quality of the filter screen are greatly improved. The invention has the advantages of simple structure, reasonable arrangement, low manufacturing cost and the like.

Description

Dust filtering ventilator

Technical Field

The invention relates to the technical field of fresh air devices, in particular to a dust-filtering fresh air device.

Background

At present, most of residential apartments have no centralized air-conditioning ventilation system, and generally adopt room air conditioners for temperature regulation; however, how to treat the air polluted by toxic substances emitted by decorative materials and the air polluted by the activity of human beings can reduce or even eliminate the influence of the toxic substances on the health of people, and many people do not pay enough attention to the air and take no measures for purifying the indoor air and supplementing fresh air. Only a few people who reproduce the indoor environmental sanitation and self health will take action to purify the indoor air and supplement fresh air. For example, the working principle of the introduced fresh air device is as follows: the device can improve indoor air quality by drawing indoor air out of the room and simultaneously drawing fresh air from the outside to supplement the indoor air. But the filter structure of current new trend ware is comparatively simple, is difficult for changing the dismouting, after long-term the use, to outdoor filtration quality greatly reduced. Therefore, there is a need for further technical innovation of the existing ventilator.

Disclosure of Invention

The invention aims to provide a dust-filtering fresh air device which is simple in structure, reasonable in design and convenient to use, aiming at the defects and shortcomings of the prior art.

In order to achieve the purpose, the invention adopts the technical scheme that:

the dust filtering fresh air device comprises a box body, wherein the box body is provided with an exhaust cavity and an air inlet cavity, the exhaust cavity is provided with an exhaust fan, the inlet end of the air inlet cavity is provided with an air inlet fan, the air inlet cavity is also provided with a filter, the filter consists of a first-stage filter screen, a second-stage filter screen and a third-stage filter screen, the three filter screens are respectively provided with a handle, two ends of each handle are fixedly connected with a hollow circular tube, the other end of each hollow circular tube penetrates through a through hole of the filter screen and then extends into a positioning cavity, and the hollow circular tube is nested with a compression bar; the inner cavity wall of the positioning cavity is provided with four pulleys which form four rectangular round corners; the inner cavity wall of the positioning cavity is further provided with two baffles, the two baffles are symmetrically provided with blocking through holes, locking blocks are embedded in the blocking through holes, two sides of the front ends of the two locking blocks are connected through two springs, the tail ends of the two locking blocks are connected through traction wires, and the traction wires penetrate through the four pulleys; the other end of the hollow circular tube is arranged in a rectangle surrounded by the two springs and the two locking blocks, and the other end of the hollow circular tube is also provided with a wedge matched with the locking blocks.

Further, the cross section area of the tail end of the pressure lever is larger than that of the hollow circular tube.

Further, the first-stage filter screen is a HEPA filter screen.

Further, the second-stage filter screen is an activated carbon sponge filter screen.

Furthermore, the third-level filter screen is made of filter cotton.

After adopting the structure, the invention has the beneficial effects that: the dust-filtering fresh air device comprises a box body, wherein the box body is provided with an air exhaust cavity and an air inlet cavity, the air exhaust cavity is provided with an air exhaust fan, the inlet end of the air inlet cavity is provided with an air inlet fan, the air inlet cavity is also provided with a filter, the filter consists of a primary filter screen, a secondary filter screen and a tertiary filter screen, the three filter screens are respectively provided with a handle, two ends of each handle are respectively and fixedly connected with a hollow circular tube, the other end of each hollow circular tube penetrates through a through hole of the filter screen and then extends into a positioning cavity, and a compression rod is nested in each hollow circular tube; the inner cavity wall of the positioning cavity is provided with four pulleys which form four rectangular round corners; the inner cavity wall of the positioning cavity is further provided with two baffles, the two baffles are symmetrically provided with blocking through holes, locking blocks are embedded in the blocking through holes, two sides of the front ends of the two locking blocks are connected through two springs, the tail ends of the two locking blocks are connected through traction wires, and the traction wires penetrate through the four pulleys; the other end of the hollow circular tube is arranged in a rectangle surrounded by the two springs and the two locking blocks, and the other end of the hollow circular tube is also provided with a wedge matched with the locking blocks. When the filter screen is used, the filter screen can be quickly replaced, so that the use by a user is greatly facilitated, and the filtering quality of the filter screen is further ensured; through tertiary filtration, greatly improve the filtration efficiency and the quality of filter screen to guarantee to mend indoor air quality from outdoor. The invention has the advantages of simple structure, reasonable arrangement, low manufacturing cost and the like.

Drawings

FIG. 1 is a cross-sectional view of the present invention;

FIG. 2 isbase:Sub>A cross-sectional view A-A of FIG. 1;

FIG. 3 is an enlarged view of the portion B in FIG. 2;

FIG. 4 is a cross-sectional view of another state of the present invention

FIG. 5 is an enlarged view of the portion C of FIG. 4;

description of the reference numerals:

1. a box body; 1-1, an air exhaust cavity; 1-2, an air inlet cavity; 1-3, positioning cavity; 2. an exhaust fan;

3. an air intake fan; 41. a first-stage filter screen; 42. a secondary filter screen; 43. a third-stage filter screen;

5. a handle; 6. a pressure lever; 7. a wedge block; 8. a locking block; 9. a pulley; 10. a pull wire;

11. a baffle plate; 12. a spring.

Detailed Description

The invention will be further described with reference to the accompanying drawings.

As shown in fig. 1-5, the dust-filtering fresh air device of the present invention comprises a box body 1, wherein the box body 1 is provided with an exhaust cavity 1-1 and an air inlet cavity 1-2, the exhaust cavity 1-1 is provided with an exhaust fan 2, the inlet end of the air inlet cavity 1-2 is provided with an air inlet fan 3, the air inlet cavity 1-2 is further provided with a filter, the filter is composed of a primary filter screen 41, a secondary filter screen 42 and a tertiary filter screen 43, the three filter screens are all provided with handles 5, both ends of each handle 5 are fixedly connected with a hollow circular tube, the other end of the hollow circular tube penetrates through a through hole of the filter screen and then extends into the positioning cavity 1-3, and the hollow circular tube is nested with a press rod 6; the wall of the inner cavity of the positioning cavity 1-3 is provided with four pulleys 9, and the four pulleys 9 form four rectangular round corners; the inner cavity wall of the positioning cavity 1-3 is further provided with two baffles 11, the two baffles 11 are symmetrically provided with blocking through holes, the blocking through holes are embedded with locking blocks 8, two sides of the front ends of the two locking blocks 8 are connected through two springs 12, the tail ends of the two locking blocks 8 are connected through traction wires 10, and the traction wires 10 penetrate through the four pulleys 9; the other end of the hollow circular tube is arranged in a rectangle surrounded by the two springs 12 and the two locking blocks 8, and the other end of the hollow circular tube is also provided with a wedge 7 matched with the locking blocks 8.

When the filter screen is installed, as shown in fig. 1-3, the filter screen is inserted into the air inlet cavity 1-2 along the guide strip on the inner cavity wall of the box body 1, the hollow circular tube and the pressure lever 6 enter the positioning cavity 1-3, and the locking block 8 blocks the wedge block 7 on the hollow circular tube through the pulling force of the two springs 12, so that the filter screen is fixedly installed.

When the filter screen needs to be replaced, as shown in fig. 4-5, the pressing rod 6 is pressed inwards, the drawing wire 10 is continuously pulled inwards after the pressing rod 6 is abutted against the drawing wire 10, at the moment, the two locking blocks 8 overcome the tensile force of the spring 12 and then move outwards, so that the wedge block 7 is separated from the locking blocks 8 for locking, and then the handle 5 is pulled again to realize the removal of the filter screen.

Further, the cross section area of the tail end of the pressure lever 6 is larger than that of the hollow circular tube.

Further, the primary filter 41 is a HEPA filter.

Further, the secondary filter screen 42 is an activated carbon sponge filter screen.

Further, the third-stage filter screen 43 is made of filter cotton.

When the filter screen is used, the filter screen can be quickly replaced, so that the use by a user is greatly facilitated, and the filtering quality of the filter screen is further ensured; through tertiary filtration, greatly improve the filtration efficiency and the quality of filter screen to guarantee to mend indoor air quality from outdoor. In addition, the structure is simple, the design is reasonable, and the manufacturing cost is low.

The above description is only a preferred embodiment of the present invention, and all equivalent changes or modifications of the structure, characteristics and principles described in the present invention are included in the scope of the present invention.

Claims

1. The utility model provides a filter dirt new trend ware, includes box (1), box (1) is provided with exhaust chamber (1-1) and air inlet chamber (1-2), exhaust chamber (1-1) is provided with exhaust fan (2), the entrance point of air inlet chamber (1-2) is provided with air intake fan (3), air inlet chamber (1-2) still is provided with filter, its characterized in that: the filter consists of a first-stage filter screen (41), a second-stage filter screen (42) and a third-stage filter screen (43), the three filter screens are provided with handles (5), two ends of each handle (5) are fixedly connected with a hollow circular tube, the other end of each hollow circular tube penetrates through a through hole of each filter screen and then extends into the positioning cavity (1-3), and the hollow circular tube is nested with a compression bar (6); the wall of the inner cavity of the positioning cavity (1-3) is provided with four pulleys (9), and the four pulleys (9) form four rectangular round corners; the inner cavity wall of the positioning cavity (1-3) is further provided with two baffles (11), the two baffles (11) are symmetrically provided with blocking through holes, locking blocks (8) are embedded in the blocking through holes, two sides of the front ends of the two locking blocks (8) are connected through two springs (12), the tail ends of the two locking blocks (8) are connected through a traction wire (10), and the traction wire (10) penetrates through four pulleys (9); the hollow pipe other end sets up in two springs (12) and two latch segments (8) enclose the rectangle of establishing, and the hollow pipe other end still is provided with voussoir (7) of matching with latch segment (8), the cross sectional area of depression bar (6) tail end is greater than the cross sectional area of hollow pipe, primary filter (41) are the HEPA filter screen.

2. A dust filter register according to claim 1, wherein: the secondary filter screen (42) is an activated carbon sponge filter screen.

3. A dust filter register according to claim 1, wherein: the third-stage filter screen (43) is made of filter cotton.